This document discusses hybrid renewable energy technologies from Convert Energy. It provides an overview of their process for evaluating sites and selecting appropriate technologies. They focus on hybrid solar photovoltaic-thermal (PV-T) panels that generate both electricity and heat. Benefits include increased energy generation per roof area and higher efficiency of solar, heat pumps, and the overall system when integrated properly. The document discusses different PV-T panel types, temperature relationships, thermal storage options, design considerations, and how hybridization maximizes benefits.
The ground source cooling system is about methods of using the ground in a heat pump to warm and cool a system close to the average surface temperature of a location. Ground source cooling system uses the earth or ground water or both as the source of heat in the winter and as the sink for the heat removed from the home in the summer. Heat is removed from the earth through a liquid, such as ground water or an antifreeze solution, upgrade by the heat pump & transfer to indoor air during summer month, the process is reversed & heat is extracted to the earth through the
ground water or antifreeze solution.
An Introduction to Air to water, Air Source, Heat Pump SystemsSpaceAir
Space Air is delighted to provide an overview of its latest RIBA accessed CPD seminar. Covering the basic principles and systems available. Developed by people with years
The ground source cooling system is about methods of using the ground in a heat pump to warm and cool a system close to the average surface temperature of a location. Ground source cooling system uses the earth or ground water or both as the source of heat in the winter and as the sink for the heat removed from the home in the summer. Heat is removed from the earth through a liquid, such as ground water or an antifreeze solution, upgrade by the heat pump & transfer to indoor air during summer month, the process is reversed & heat is extracted to the earth through the
ground water or antifreeze solution.
An Introduction to Air to water, Air Source, Heat Pump SystemsSpaceAir
Space Air is delighted to provide an overview of its latest RIBA accessed CPD seminar. Covering the basic principles and systems available. Developed by people with years
Bill Gould, CTO at SolarReserve, presented at the GW Solar Institute Symposium on April 19, 2010. For more information visit: solar.gwu.edu/Symposium.html
In case you missed it !! NuTech gave a presentation at the recent Gas Networks Ireland (GNI) Conference for BER Assessors. The presentation deals mainly with how the NuTech Solar Enhanced Heating and Hot Water system can be used together with a simple and reliable gas boiler system can be used to comply with Part L & achieve an A Rated House. The presentation also gives information on the NuTech Solar Enhanced Ventilation and Hot Water system can be used to satisfy Part L.
For download link head to http://solarreference.com/solar-cooling-training-presentation/
Also available from SOLAIR website.
A presentation from the SOLAIR project on sizing of solar air conditioners. their website has a lot of details information. For similar useful resources visit us on http://solarreference.com
Peltier Effect- when a voltage or DC current is applied
to two dissimilar conductors, a circuit can be created that
allows for continuous heat transport between the
conductor’s junctions. The Seebeck Effect- is the reverse
of the Peltier Effect. By applying heat to two different
conductors a current can be generated
This presentation introduces the principle of an air source heat pump, the key parts of the heat pump system and shows some examples of how heat pumps saves your money and protects the environment.
A type of steel in which carbon is the primary alloying element, with the level of carbon contained in a steel being one of the most important factors governing its mechanical properties. Mild steel has no more than 1.65% manganese, 0.6% silicon or 0.6% copper. Mild steel is available with varying levels of formability. The more formable grades are typically more costly than the less formable grades. Also called carbon steel.
Bill Gould, CTO at SolarReserve, presented at the GW Solar Institute Symposium on April 19, 2010. For more information visit: solar.gwu.edu/Symposium.html
In case you missed it !! NuTech gave a presentation at the recent Gas Networks Ireland (GNI) Conference for BER Assessors. The presentation deals mainly with how the NuTech Solar Enhanced Heating and Hot Water system can be used together with a simple and reliable gas boiler system can be used to comply with Part L & achieve an A Rated House. The presentation also gives information on the NuTech Solar Enhanced Ventilation and Hot Water system can be used to satisfy Part L.
For download link head to http://solarreference.com/solar-cooling-training-presentation/
Also available from SOLAIR website.
A presentation from the SOLAIR project on sizing of solar air conditioners. their website has a lot of details information. For similar useful resources visit us on http://solarreference.com
Peltier Effect- when a voltage or DC current is applied
to two dissimilar conductors, a circuit can be created that
allows for continuous heat transport between the
conductor’s junctions. The Seebeck Effect- is the reverse
of the Peltier Effect. By applying heat to two different
conductors a current can be generated
This presentation introduces the principle of an air source heat pump, the key parts of the heat pump system and shows some examples of how heat pumps saves your money and protects the environment.
A type of steel in which carbon is the primary alloying element, with the level of carbon contained in a steel being one of the most important factors governing its mechanical properties. Mild steel has no more than 1.65% manganese, 0.6% silicon or 0.6% copper. Mild steel is available with varying levels of formability. The more formable grades are typically more costly than the less formable grades. Also called carbon steel.
With the Quantified Mind web-app, Justin tracked his performance & correlated with diet, exercise, and sleep over 6 months.
Justin can be found at http://justinlawler.net
Ryan Lunka of n channel offered a comprehensive and insightful look at common problems and challenges faced by marketers and brand managers in an increasingly busy and competitive landscape.
Engaging topics included The Five Marketers Your eCommerce Needs, Struggling with eCommerce, why there is an 80% failure rate for new websites, and launching a content strategy.
The Framework of Image Recognition based on Modified Freeman Chain CodeCSCJournals
Image recognition of line drawing involves feature extraction and feature comparison. Works on the extraction required the representation of the image to be compared. Combining these two requirements, a framework that develops a new extraction algorithm of a chain code representation is presented. In addition, new corner detection is presented as pre-processing to the line drawing input in order to derive the chain code. This paper presents a new framework that consist of five steps namely pre-processing and image processing, new corner detection algorithm, chain code generator, feature extraction algorithm, and recognition process. Heuristic approach that is applied in the corner detection algorithm accepts input of thinned binary image and produce a modified thinned binary image consisted of J character to represent corners in the image. Using the modified thinned binary image, a new chain code scheme that is based on Freeman chain code is proposed and an algorithm is developed to generate a single chain code series that is representing the line drawing input. The feature extraction algorithm is then extracting the three pre-defined features of the chain code for recognition purpose. The features are corner properties, distance between corners, and angle from a corner to the connected corner. The explanation of steps in the framework is supported with two line drawings. The results show that the framework successfully recognizes line drawing into five categories namely not similar line drawing, and four other categories that are similar but with attributes of rotation angle and scaling ratio.
Simplifying your retail_it_enterprise_with_preemptive_support_povPhaniKishore Burre
Retail businesses today are operating in a highly competitive
environment with multiple challenges that have an impact
on revenue, margins and customer satisfaction. The main
challenge today for a retailer is loss of revenue due to notvery-
well-defined IT in stores, productivity loss in stores
and distribution centers due to non-optimized IT resulting
in overall customer dissatisfaction. Retail enterprises lose
customers to their competitors in case of unpleasant past
experiences like long waiting queues, wrong prices at
checkouts, etc., while shopping. This makes it important for
retail enterprises to be preemptive in providing support to
the stores and distribution centers improving productivity of
the staff and overall availability of devices that are customer facing.
In the realm of home comfort and efficiency, modern water heater
installation options have evolved to meet the diverse needs of
homeowners. As technological advancements continue to shape the
landscape of residential and commercial appliances, the choices
available for water heating systems have expanded beyond traditional
models. In this comprehensive guide, we will explore the latest
innovations and modern water heater installation options,
shedding light on the benefits and considerations associated with each.
Tipperary Energy Agency has launched a pilot funding project that aims to deliver a deep retrofit for homes funded with a repayable loan and significant capital discounts. The project aims to move away from shallow retrofit and test applications of whole house retrofit focusing on cost effective solutions. This type of retrofit is designed to significantly decrease Ireland’s carbon emissions from the domestic sector and is critical to reduce the emissions of greenhouse gases.
Property Developers, after a slow start, acknowledged the concept of development lifetime costing and swiftly realized the need to review their project, its components to accommodate sustainability as a driver of the engineering systems. The presentation sheds light on most Engineering systems explored including Energy and water Efficiencies through both Passive Design and Active Designs, District Cooling , Alternative Energy like Cogeneration, Solar Harvesting and Geothermal Energy with some highlights on Transportation, Parking, Foundations and Geotechnical Investigation
A heat pump is a device that provides heat energy from a source of heat to a destination called a "heat sink". Heat pumps are designed to move thermal energy opposite to the direction of spontaneous heat flow by absorbing heat from a cold space and releasing it to a warmer one. A heat pump uses some amount of external power to accomplish the work of transferring energy from the heat source to the heat sink.
While air conditioners and freezers are familiar examples of heat pumps, the term "heat pump" is more general and applies to many HVAC (heating, ventilating, and air conditioning) devices used for space heating or space cooling. When a heat pump is used for heating, it employs the same basic refrigeration-type cycle used by an air conditioner or a refrigerator, but in the opposite direction - releasing heat into the conditioned space rather than the surrounding environment. In this use, heat pumps generally draw heat from the cooler external air or from the ground.[1] In heating mode, heat pumps are three to four times more efficient in their use of electric power, than are simple electrical resistance heaters.
Download Link (Copy URL):
https://sites.google.com/view/varunpratapsingh/teaching-engagements
Syllabus:
Introduction
Need of Cogeneration
Principle and Advantages of Cogeneration
Technical Options for Cogeneration
Gas turbine Cogeneration Systems
Reciprocating Engine Cogeneration Systems
Classification of Cogeneration Systems
Topping Cycle
Bottoming Cycle
Factors Influencing Cogeneration Choice
Important Technical Parameters for Cogeneration
Typical Cogeneration Performance Parameters
Relative Merits of Cogeneration Systems
Case Study
amount of energy used is equal to amount of renewable energy created on the site
reduce carbon emissions & reduce dependence on fossil fuels
Buildings that produce a surplus of energy over the year are called “Energy Surplus Buildings”
During the last 20 years more than 200 reputable projects claiming net zero energy balance have been realized all over the world.
NZEB buildings consequently contribute less overall greenhouse gas to the atmosphere than similar non-ZNE buildings. They do at times consume non-renewable energy and produce greenhouse gases, but at other times reduce energy consumption and greenhouse gas production elsewhere by the same amount. Traditional buildings consume 40% of the total fossil fuel energy in all over the world and are significant contributors of greenhouse gases.
2. Convert Energy uses
the process flow to
ensure all projects follow
a strict routine which
ensures all aspects are
covered
Evaluation of
building using
our in-house
modelling
software
Selection of
appropriate
technologies,
using in house
designed, hybrid
renewable
energy
technologies
Detailed system
design and
development of
kit of parts (using
above software)
System control,
using our
purpose built,
unique hybrid
solar controller
Deployment of
solution on site
Post installation
evaluation,
monitoring and
feedback
Continuous
system and
modelling
improvements
and new product
design
Bespoke project assessment
3. What are Photovoltaic panels
3
PV cells are made from layers of semi-conducting material,
usually silicon. When light shines on the cell it creates an
electric field across the layers. The stronger the sunshine, the
more electricity is produced. Groups of cells are mounted
together in panels or modules that can be mounted on your roof
• Can be cheap to install
• Cut your electricity bills: sunlight is free, so once you've paid for the
initial installation your electricity costs will be reduced.
• Get paid for the electricity you generate: the government’s Feed-In
Tariffs, even if you use it.
• Sell electricity back to the grid: if your system is producing more
electricity than you need, or when you can't use it, you can sell the
surplus back to the grid.
• Cut your carbon footprint: solar electricity is green, renewables energy
and doesn't release any harmful carbon dioxide] or other pollutants. A
typical home solar PV system could save over a tonne of carbon
dioxide per year – that's more than 30 tonnes over its lifetime.
4. What are Solar Thermal panels
4
Solar water heating systems use free heat from the
sun to warm domestic hot water. A conventional
boiler or immersion heater can be used to make the
water hotter, or to provide hot water when solar
energy is unavailable.
• Can be cheap to install
• Hot water throughout the year: the system works all year round,
though you'll need to heat the water further with a boiler or
immersion heater during the winter months.
• Cut your bills: sunlight is free, so once you've paid for the initial
installation your hot water costs will be reduced.
• Cut your carbon footprint: solar hot water is a green, renewable
heating system and can reduce your carbon dioxide emissions.
• Can take a long time to pay back as the incentives tariff is high
but the deeming only gives certain amount of Kwh to be paid
on.
• We tend to install PV-T in place of Solar Thermal panels.
5. What are Hybrid solar panels (PV-T)
5
• Photovoltaic thermal (PVT) technology refers to the integration of a
PV and a conventional solar thermal collector in a single piece of
equipment. As a consequence this technology combines a
simultaneous conversion of solar radiation into electricity and heat.
• General Benefits:
• Up to 15% annual Electric kWh uplift per kW installed
• Greater total energy generation per m² of roof space
• Greater kg of CO₂ displaced per m² of roof area per year than PV or solar thermal
• Panels that are MCS accredited for both solar thermal and PV can claim the Fit
and RHI
• Single panel type on roof and single installation
• General Stumbling blocks:
• Should only be used if there is a requirement for both heat and power.
• People tend to think in price per electrical watt and compare to PV
• Some early panels ineffective along with past miss-selling leading to bad press
• Installation Complexity
6. Types of Hybrid solar panels (PV-T)
6
PowerVolt 200/630:
• This is the Volther PowerVolt Panel
• 1.37m² , 200W Pk(e), 630W Pk(Th)
• High Electrical Yield
• Low temp application only
• Lots of Kwh thermal at low temp
• Perfect for pre-heat systems
• Great for ground charging
• Good as source for heat pump
7. Types of Hybrid solar panels (PV-T)
7
PowerTherm 180/680:
• This is the Volther PowerTherm panel
• 1.42 m² , 180W (e), 680W (Th)
• Similar annual electric yield to PV
• Low to mid temp range applications
• Lots of Kwh thermal
• Great for ground charging
• Useful for direct hot water contribution
• Great for hitting code in housing developments
8. 8
Panasonic HIT technology
• High Module efficiency (19%)
• High quality Japanese Module
• Good low light properties
• Takes less roof space
• Less on roof kit/ lower install cost
• More expensive than standard PV
can mean a more expensive
installation.
9. 9
Panasonic HIT technology
HIT solar cells improve boundary characteristics and reduce power generation
losses by forming impurity-free i-type amorphous silicon layers between the
crystalline base and p- and n-type amorphous silicon layers.
13. 13
Photovoltaic Temperature vs. efficiency
relationship
Solar Thermal Temperature vs. efficiency
relationship
Heat Pump Temperature vs. efficiency relationship
Why do we hybridise renewable
technologies?
1. Both solar
thermal and PV
give a larger
volume of energy
at a lower
temperature
2. Heat pumps run
more efficiently
with a higher
source
temperature
3. Using these relationships,
the controller can balance heat
flows to increase the efficiency
of all parts of the system
14. 14
Heat pumps and their applications
• COP (efficiency) is linked to the amount the heat pump raises the temperature between the
source and the target
• Standard methods for maximising the COP of a heat pump revolve around low temperature
delivery.
• We increase the source temperature to drop the delta t
• Integration with PV-T benefits to Heat pump; higher COP, less compressor work
• Benefits to the PV-T; increased outputs, longevity
17. 17
Boreholes
• Reliable source of heat when
installed properly.
• Is used without solar charging
(can self replenish)
• Can store heat inter-seasonally
when charging the ground as
long as not flowing water
• When charging if spaced close
together or in radial fashion can
get heat bubbles through
interference.
• Geology can mean they are
suitable for a property.
• Can be unforeseen issues
(underground caverns)
• Can be expensive
18. 18
Horizontal loops and Slinkey's
• Can be cheaper to install
• Are used without ground
charging (can self replenish)
• Requires large amount of ground
area for installation
• Cannot be used for inter-
seasonal storage although can
for diurnal
• Slinkey's reduce the amount of
ground works/ land required
although still significant
• More annual temp fluctuation
than borehole
19. 19
Water source
• Can be a lot cheaper to install
• Very project specific
• Open / closed loop- maintenance
and CAPEX
• Lake loops- body of water size/
usage
• River open source - minimum
flow considerations HE
maintenance
• No inter-seasonal storage
• Can still be used as heat dump
• PV-T tops up when available
(day) through Heat exchanger
20. 20
Earth Energy Bank
• New build solution for low energy
houses
• Doesn’t go deep so no geological
reports and is not restricted to
locations.
• Build up heat over time from solar
input (not self replenishing).
• Under the house so no requirement
for large garden space
21. Main Design considerations with HSS
Inverters:
• sizing of the inverters as higher peak
• galvanic isolation for inverters used with
PV-T
Control :
• With PV-T we do not modulate pump speed
as we want Isothermal surface of panel
• Pulsed heat
Tanks and coils:
• Powervolt for Pre-heat
• Right panels for right application
• If low source temp then the heat pump
either requires control of max ground return
temp or blending of source side of Heat
pump
22. Advantages through Hybridisation of
renewable technologies
• Highest CO2 displacement per m² roof
space for solar technology
• Multiple revenue streams (FIT and RHI)
• High energy cost savings
• Maximize available roof space
• Reduced installation cost as opposed to
independent technologies
• When integrated correctly can reduce
complexity of systems
• Key to development is integration of
renewables
• Separates you from the competition
• Allows you to specify the right system for
the project dependent on individual
requirement's
23. Multisource
• We use standard heat pumps as
multisource but with ground and PV-T as
the sources.
• Excess solar heat tops up the Air temp
and so improves the COP
• In return the heat being dumped keeps
the PV-T cooler and maintains a higher
electrical conversion efficiency.
• The electricity from the panels offsets
the compressor running of the HP.
• Low cost - high efficiency
• high CO2 displacement density
• Good returns
24. Thank You
Convert Energy Ltd
Canterbury Innovation Centre, Unit 70,
University Road, Canterbury, Kent,
CT2 7FG
Main: +44 (0) 2030048338
Mail:
info@convertenergy.co.uk
