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.
7. Tube Tube heat Exchanger (TTHE)
• Tube-Tube Heat Exchangers (TTHE) design uses a judicious combination of
bends, straight lengths, tube diameter/s, tube material/s, thermal bonding
material to enable multi-stream multi-phase heat transfer.
• Variation of mass flow rate of fluid stream/s at intermediate stages in a single
TTHE is possible.
• It offers a double wall vented design which eliminating problem of mixing of
fluid streams in case of leakage and offers the flexibility of utilizing different
conduit materials that are compatible with the individual fluids.
8. COP (Coefficient of Performance)
•COP is the ratio of heat output to electrical energy input. Higher the COP,
the more efficient the system.
•MWE Heat pump heat tap water from 27 to 55 0C with a heating Coefficient
of Performance (C.O.P.) of 3 to 4; while simultaneously chilling potable water
from 27 to 18 0C with a cooling COP of 3 - 3.5; overall energy saving would
be over 66 to 75%.
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9. Space cost
+
High Capital Costs
Dependent on climatic condition
+
High Maintenance Overhead
+
Low efficiency
+
Need Backup of Conventional system
+
Reliance on subsidy for Payback
+
Deficiency in Existing Conventional
and Non Conventional Energy saving
devices
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10. Recognizes and caters to problem
faced by existing system and
launches energy efficient technology
that :- Heat Pump
Solution on problem
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11. Air to Water Heat Pump is alternative to Solar Water Heater
Particulars Solar water heater Air to water heat pump
Indian Hemisphere 65 % solar and 35 % on electric
heater. In such conditions solar water
heater are inefficient.
Designed to operate in extreme from
-15 oC to +45 oC
Frost issue Does not operate in subzero
temperature
Operates in ambient temperature that is
-15oC. Defrosting is not required up to -
5oC
Operation Hours Can be operated only day time Can be operated at any time (day/night)
Seasonal condition Solar water heater can operate for
only 6 to 8 hours a day.
Air water heater system can operate
24*7*365.
Space requirement Large shadow free space required 5% of solar panel space is required, and
can be installed at any convenient space
Direction and position
of installation
Solar is required to install on south
facing.
Independent of direction.
Cost of equipment Small solar water heater is
competitively priced. Larger solar
water heater are expensive and also
require regular maintenance
Air to water heater are cheaper than
solar water heater
Payback Payback depends upon the
geographical location and varies
with location
Early payback independent of location
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13. INPUT
Quantity of hot water required in
litres 3000
Inlet Water temp. Deg. C 25
Out let water temp. Required ͦ C 55
COP 4
Saving with Alternative Fuels.
Efficiency (in %) 85 80 85 75
Parameter Heat Pump Electric Geyser Diesel LPG Coal Furnance Oil
Calorific value (kcal/kg) 10700.00 11600.00 5015.00 10200.00
Heat Required in kcal. 90000.00 90000.00 90000.00 90000.00 90000.00
90000.00
KWH HEATING REQUIREMENT 26.16 104.65
Heat delivered per kg 8.41 7.76 17.95 8.82
Total fuel required in kg 9.90 10.34 51.27 11.76
Cost/unit 7.00 7.00 55.00 85.00 5.00 63.67
Total cost PER day 183.14 732.56 544.26 879.31 256.37 749.06
Saving per day 549.42 361.12 696.17 73.23 565.92
Saving per year
200538 131807 254102 26730 206561
SAVING COST CHART
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15. Advantages
Huge Saving on Energy Cost
Work Always
Save Space
Eco Friendly Refrigerant
Sophisticated Controls
Use your Existing System
Tax Benefit
No Hazards
Attractive pay-back period
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16. Conclusion
• Heat pump is the newly invented device for the main
purpose of energy and fuel consumption.
• Heat pump technology is widely use in air conditioner
and refrigerators.
• In heat pump we are using refrigerant which is very
cheaper as compare to fuel components that's why we
can consume the large amount of cost as well as fuel.
• Heat pump is very eco-friendly. Doesn't make any
pollution and kept surrounding environment cool.
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17. References
• Pdf format file, 3V COGEIM srl (drying for pharmaceutical and
chemical industries.
• Heat pump book, by RAFIQ FIQUETIONAL.
• Basic heat pump components , by DRABC123.
• Heat pump applications by, RUSSELL COLLETT.
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