Conversion of R290 in Chillers and Ducted Air Conditioners

•

1 like•741 views

The document discusses safety aspects and design considerations for refrigeration systems using hydrocarbon refrigerants. It covers relevant safety standards, limiting the refrigerant charge, selecting components to minimize volume, ensuring electrical safety, proper installation location and ventilation, specialized production facilities, and training requirements. The goal is to eliminate risks of fire by reducing refrigerant concentration and avoiding ignition sources, while maintaining performance.

Technology

• Background
• Basic Design
– Safety Aspect
– Components Selection
• Production & Testing Facilities
• Installation on Site
• Customer Approach

• Safety Standard
– EN 378 : Refrigerating systems and heat pumps
Safety and environmental requirements
– ISO (DIS) 5149: Refrigerating systems and heat
pumps - Safety and environmental requirements
– IEC 60335-2-40: Particular requirements for
electrical heat pumps, air-conditioners and
dehumidifiers
– SNI-06-6500-2000 – Refrigerant application for
fixed Installation

• Safety Aspect
– Unit Construction must be consider for avoid
Triangle of Fire Condition occurs. Eliminate at
least one factor, preferable two factor i.e
Ignition and Refrigerants concentration.
– Charge Limitation for Direct system
(Refrigerant circulated to the Room)
– Electrical control box with ATEX Spec.
– All Control & Accessories without Sparks

• Concern to component w/ large amount of
Refrigerant – Condenser Coils
– Separate with other component & parts
– Free space at bottom
because R290 gas
heavier than air.
– Good Ventilation

• Eliminate for all electrical component that
have potential to produce sparks, ensure :
– Placed on appropriate enclosure
– Replace with solid
state contact or
explosion proof spec
– Locate externally

• Compressor

Anti Static Electric Box

Cable Conduit

• Heat Exchangers. According to minimize the
charge, select the smaller volume.

Conventional Fins and Tube, Advanced HX with 40% Reduce Volume
can Maximizing the Airflow to Reduce Size Microchannels Technology for Condenser

• Heat Exchangers. According to minimize the
charge, select the smaller volume.

Shell n Tubes Coolers for Chillers Braze Plate Heat Exchanger BPHE
Very Large of Volume 85 % Reduction in Volume of S&T

• Other Parts & Accessories

Must be specialized
For HC Refrigerants

• Using HC Refrigerant will take changes to
safety of production line

• Give Warning to some area which work with
HC Gas

• Refrigerant Handling and Storage
• Rules for R290
refrigerant cylinders
usually same as any
flammable gas cylinder
– Store outside – follow local
regulations for LPG, if none at least:
☺ In a locked cage
☺ At ground level (never below)
☺ Away from air intakes to building
☺ Remote from ignition sources
No smoking

• Location & Positioning would generally be
within the requirement of Relevant
Standards
– Located Outside
(Open Air), unit
should be positioned
to avoid refrigerant
leaking into the
building

– Located Inside in a
Machinery room,
occupied space, or
within a ventilated
space enclosure,
specified in EN 378-1

• Training
– Design engineers technical and safe handling
– Production workers basic safe handling
– Production technicians thorough safe
handling
– Service technicians thorough safe handling

Conversion of R290 in Chillers and Ducted Air Conditioners

This document provides information on solutions and services for complete plants and pressure vessels. It details engineering, production, testing, and commissioning services. It also summarizes the features of two specific natural gas mixing plants installed in Russia and Bulgaria, including flow capacities, equipment, and safety features. Contact information is provided at the end to request a technical and financial offer by providing additional details about the site and gas consumption needs.

Five zones split tube furnace with separated temperature controller

Acmas Technologies Pvt. Ltd.

PORTFOLIO

Pavan Kalal

This document provides an overview of the HVAC design for a 3-story commercial building in Bangalore, India. Key details include a cooling load of 40 tons for the 23,643 square foot building occupancy of 331 people. The air distribution system uses a variable air volume single duct system with ceiling suspended air handling units. The chiller plant includes two water cooled scroll chillers of 20 tons each and a cooling tower sized at 50 tons. Plumbing, electrical, fire protection and coordination drawings are also included.

Maximize subcritical hours with adiabatic technology

ATMOsphere Conferences & Events

Yosemite Foods expanded their pork processing facility in Stockton, CA, installing a 100% CO2 refrigeration system to service the 116,000 square foot refrigerated space. The 5-rack system was designed for efficiency and redundancy using parallel compression. Key components included Danfoss controls, CRS compressor racks, BAC Trillium gas coolers, and a hot water heating loop. While some challenges occurred during installation and commissioning, the system is now operational and nearing production runs in July.

Eric Smith, International Institute of Ammonia Refrigeration (IIAR)

ATMOsphere Conferences & Events

The document provides information about the Industrial Refrigeration Users & Research Industry Association (IIAR). It discusses that IIAR is a membership-based technical society for natural refrigerants that develops ANSI standards and provides educational resources. It lists IIAR's current suite of ANSI standards for ammonia refrigeration systems and standards that are under development for carbon dioxide and natural hydrocarbon refrigeration. It provides background on the development of IIAR's draft CO2 refrigeration standard, including the demand from industry for such a standard, the pre-public review comment process, and the upcoming public review period.

Application of adiabactic gas coolers for refrigerated warehouse applications

ATMOsphere Conferences & Events

The document discusses adiabatic gas coolers for refrigerated warehouses using CO2 transcritical applications. It describes how adiabatic cooling systems can increase thermal performance and improve energy efficiency of compressors in warm climates. Different models are available with varying numbers of fans and capacities up to 700 tons. Control capabilities include motor and hydro management to properly cool the CO2 outlet temperature based on water flow, fan speed, and ambient conditions. Example applications described include facilities in Washington, Pennsylvania, and Quebec using single or multiple fan units for their CO2 refrigeration systems.

Mach High Efficiency Boilers

dvarrone

The document discusses an innovative boiler that provides significant energy savings through its capabilities and proper application. It has unprecedented capabilities like 92% efficiency, full modulation, and variable speed combustion. It also allows for superior fuel utilization, application versatility, and control capability. Integrating the boiler and understanding system design issues are essential to realizing its energy savings potential. The document emphasizes properly sizing and engineering the venting system.

RLS Logistics futureproofs with CO2

ATMOsphere Conferences & Events

The document describes a company that is headquartered in New Jersey and operates six warehouse locations. It discusses the company's commitment to sustainability and its plans to convert the refrigeration system at its new Delanco, New Jersey warehouse to an industrial CO2-based system. The CO2 system will be more environmentally friendly and economically viable compared to the existing R22 system. It will also use less water and eliminate the need for water treatment. Energy benchmarking information is provided on the specifications and operation of the proposed two-stage CO2 refrigeration system.

This document summarizes a presentation on heat tracing standards, options, and application optimization. It discusses various heat tracing standards from Canada, the US, and Europe from the 1980s to present. It describes how the standards are related and what they address, including recent changes. The presentation covers type tests for heat tracing, methods to establish maximum sheath temperature, and controlled design approaches. It discusses future developments in standards, including harmonization efforts between IEEE 515 and IEC 60079-30. The document concludes by summarizing recent changes to the Canadian Electrical Code regarding heat tracing.

Mexico's first transcritical system at Casa Ley

ATMOsphere Conferences & Events

This document summarizes Mexico's first CO2 transcritical supermarket system installed at a Casa Ley store in Culiacan, Sinaloa, Mexico. The 75,400 square foot store uses a CO2 booster system with a gas cooler and compressor rack to power display cases. Compared to a traditional HFC system, the CO2 system was projected to use 6.8% less energy per year and have a 75% lower total emissions impact, though it requires a 47.4% larger refrigerant charge. The installation of high-pressure CO2 components presented some challenges, but maintenance costs were expected to be similar with additional cleaning of the gas cooler pads.

Specification mufflefurnace

hydrologyproject0

Bahniuk Utility Job

David Bahniuk

David Bahniuk is a mechanical engineer who has worked on several large-scale HVAC and mechanical projects for historical buildings. The document describes a proposed project for Rockwool International involving installing an absorption chiller system to provide air conditioning for a manufacturing facility using waste heat from a furnace. It compares the absorption chiller option to using traditional air-cooled chillers, finding that the absorption system would significantly reduce energy costs while providing sufficient cooling capacity. The installed system ended up using a 750-ton chiller instead of the proposed absorption system due to budget cuts, but was still designed to accommodate future absorption cooling.

Best practices for food service applications

ATMOsphere Conferences & Events

This document discusses Secop's journey towards more sustainable refrigeration technologies. It outlines their transition from HFC refrigerants like R404A to natural refrigerants like propane (R290) and the optimization of systems through variable speed compressor technology. The document describes case studies of converting a commercial freezer from R404A to R290 and further improving it with a variable speed compressor. It also discusses Secop's optimized simulation-based approach to development that reduces testing time and costs compared to traditional methods. Finally, it provides a brief overview of Secop's portfolio and experience in refrigeration.

Exheat Flameproof Hazardous Area Industrial Immersion Heaters, Zone 1 & 2 R...

Thorne & Derrick UK

The RFA-C flameproof core immersion heater is designed for hazardous areas and offers a heating solution for applications requiring low heat density, such as heating oil. The removable cartridge element can be inspected without draining the system. The heater consists of a single element core housed in a flameproof terminal enclosure and mounted flange. It is certified to ATEX standards and suitable for ambient temperatures from -40°C to +40°C.

Winterisation - Arctic Offshore & Maritime Heating Solutions - Thermon Heat T...

Thorne & Derrick International

This document discusses Thermon's trace heating solutions for operating in Arctic and offshore environments. Thermon provides anti-icing and de-icing systems to ensure safety and operations on offshore oil and gas platforms, vessels, and infrastructure in harsh Arctic conditions down to -60°C. Their engineered solutions include winterization, temperature maintenance, and heating for areas like stairs, railings, hatches, helidecks, and walkways to prevent ice formation and allow safe access. Thermon designs projects using modeling and has products approved for hazardous areas to support exploration and production in the Arctic.

Cooling System

WKozak

This document discusses overcoming high downhole temperatures when running tools. It introduces a downhole cooling system that circulates coolant inside coil tubing to protect tools from temperatures over 150°C. The system avoids pumping large volumes of water downhole and can keep tools cool for extended periods. Testing showed the system maintained an internal temperature over 150°C cooler than the external temperature and allowed tools to operate past their normal limits in high-temperature wells. The cooling system is being prepared for field testing with service companies to enable more extensive logging in demanding high-temperature applications like SAGD wells.

160425_ITM_Image_brochure_eng

Daniel Ruell

Industrial Thermal Management develops and delivers thermal management solutions using technologies like PTC, wirewound, and Peltier technologies. They offer a broad range of standard and custom heating/cooling products and systems for applications in industries like manufacturing, transportation, buildings, and renewable energy. As part of the DBK Group, they have manufacturing and sales globally to serve customers worldwide with over 60 years of expertise in thermal management.

EXHEAT - Hazardous Area Process Heaters (Zone 1 & Zone 2) - Brochure

Thorne & Derrick UK

EXHEAT is a leading manufacturer of electric heaters and control systems for hazardous and non-hazardous areas. They custom design products that meet precise client needs for heating and temperature control. EXHEAT has extensive experience in electrical, mechanical, and thermal design for equipment used in industries like oil, gas, and petrochemicals. Their equipment is manufactured in ISO certified facilities and certified by international standards organizations for hazardous area installation. EXHEAT aims to provide reliable, customized solutions and high quality service worldwide.

Mechanical subcooling of R744 processes with R718 in industrial and commercia...

ATMOsphere Conferences & Events

This document discusses using mechanical subcooling with ammonia (R718) to improve the efficiency of carbon dioxide (R744) refrigeration processes for industrial and commercial applications. It describes a cascade system where R718 is used to subcool R744, increasing the COP at high ambient temperatures without added complexity. Case studies show such a system can be used to freeze apple pastries by subcooling CO2 with water. Both R718 and R744 are natural refrigerants that can help reduce CO2 equivalent emissions in HVAC&R applications when used together in a cascade arrangement.

R290 Huayi Compressor powering FrigiKern multi-temperature lockers for perish...

ATMOsphere Conferences & Events

Ankersmid peliter cooler datasheet 0

a1-cbiss

Project portfolio

iliyasahmamt

This document provides a portfolio for an MEP engineering project for an office building in Bangalore, India. It includes a 3D building model and details about the building specifications, cooling load analysis, air distribution system design, pressure loss calculations, equipment selection, plumbing, electrical, fire fighting, coordination, and family creation for the Revit model. The project involves designing the mechanical, electrical, and plumbing systems for a 5-story office building with a total area of 17817 square feet and cooling load of 38.1 tons.

Thermal Conductivity Apparatus - Digitech Roorkee

abhayy21

The Thermal Conductivity Apparatus (DG-IS-TCA) measures and displays the thermal conductivity of insulating materials using the Guarded Hot Plate Method. It satisfies Indian and American standards. The automatic, programmable instrument displays the thermal conductivity value directly without expertise or adjustments. Windows software displays temperature and power data to automatically calculate thermal conductivity.

Brochure VTI

Michel Van Thielen

Vermeer Thermex International designs, engineers, manufactures, and supplies the ThermEx Thermal Maintenance System to heat piping, vessels, tanks, valves, and pumps using an external heating method. The system uses thermal analysis to determine heating element placement and maintains required process temperatures to prevent issues like condensation. Components are manufactured according to standards and traceable, then assembled and tested before installation.

Peltier cooled series.hires

Sheldon Manufacturing, Inc.

These incubators use innovative peltier cooling technology that eliminates the need for a refrigeration compressor, using over 70% less power than alternative models. They provide even air distribution and temperature uniformity across shelves. One customer was able to replace two compressor-based incubators with a single Shel Lab SRI20P unit due to its superior temperature uniformity. The SRI20P also saves on energy costs and reduces air conditioning loads in laboratories.

Exceptional performance and natural efficiency for beverage coolers

CAREL Industries S.p.A

Heez is the new CAREL solution for the control and management of beverage coolers that is presented for the first ever time at Euroshop 2017. Heez combines CAREL’s experience in the design and control of high-efficiency solutions with the application of technological innovations, such as wireless connectivity, for a new user experience. Heez moreover enables a low environmental impact, as it uses propane, a natural refrigerant, and it comfortably meets the requirements of the reference standards in terms of energy efficiency and the needs of the highest-performance coolers available on the market.

Thermal Edge Product Line Overview Brochure 2014

Thermal Edge Inc

How to hande greasy waste in industrial kitchens

Dillen Valerie

151105_DBK_Enclosure_range

Daniel Ruell

This document provides information on climate control components and systems from ITM - Heating. Cooling. Thermal Control, including: - A range of heating and cooling products for electrical enclosures using technologies like PTC heating, thermoelectric cooling, and filter fans. - Accessories like hygrostats, thermostats, and dualstats for temperature and humidity control. - Custom solutions and certifications to ISO standards. - Contact and product information is provided for locations in the UK and Germany.