21
Leila Chennaoui, Giovanni Cerri*, S. Benyamin Alavi DEPARTEMENT OF ENGINEERING Electric Energy Saving in Building HVAC and Domestic Refrigerators by Vapor Compression Power Regeneration Cycles [email protected] SEPTEMBER 13-15, 2017

Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

  • Upload
    others

  • View
    0

  • Download
    0

Embed Size (px)

Citation preview

Page 1: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

Leila Chennaoui, Giovanni Cerri*, S. Benyamin Alavi

DEPARTEMENT OF ENGINEERING

Electric Energy Saving in Building HVAC and Domestic Refrigerators by Vapor Compression Power Regeneration Cycles

[email protected] 13-15, 2017

Page 2: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 2

COLD

LOW TEMPERATURES

ARTIFICIAL COOLING

IMPROVES THE QUALITY OF THE LIFE OF HUMAN

BEINGS

Page 3: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 3

Page 4: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 4

Page 5: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 5

Page 6: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 6

HOUSES, SHOPS, RESTORANTS & MORE ...

URBAN BUILDINGS

Page 7: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 7

INDUSTRIAL BUILDINGS

Page 8: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 8

ELECTRIC WORK CONSUMED FOR COOLING POWER PRODUCTION

• WORLDWIDE 17%• INDUSTRIALIZED COUNTRIES 22%• DEVELOPING HOT COUNTRIES UP TO 40%• WORLDWIDE CO2 LINKED EMISSIONS 4.5%• + MILLIONS OF GASOLINE AND DIESEL FUEL LITRES: CARS, TRUCKS, SHIPS, etc.

WORLD 3061CHINA 1029ITALY 75USA 949JAPAN 231

COOLING POWER PRODUCTION [GkWh]

Page 9: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 9

SIMPLE CYCLE

CP=m*efscPel=m*WMCscCOP=efcs/WMCsc

HERMETIC OR SEMIHERMETIC COMPRESSORS

Page 10: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 10

SIMPLE CYCLE

Page 11: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 11

THERMAL REGENERATION CYCLE

HEEFF= (T1-T8)/(T5-T8)

Page 12: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 12

THERMAL REGENERATION CYCLE

Thermal Regeneration VCRC Performance for a given compressor

Page 13: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 13

POWER REGENERATION CYCLES

Bottom Power Regeneration CyclesTop Power Regeneration Cycle

Page 14: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 14

Condenser TQ chart

Evaporator TQ chart

Bleed Vapor Generator TQ chart

VBGEFF= (T5j-T6j)/(T5j-Tbj)

Page 15: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 15

Compressor and Expander Processes

SELECTION AND SIZING OF THE VPA

Compressor and Expander through Flow Section

Page 16: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 16

OPTIMIZATION RESULTSTop Power Regeneration Cycle Bottom Power Regeneration Cycles

Page 17: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 17

Compressor Expander

Application of the 1D MLM leads to provide

the profiles of compressor and

expander impellers

SELECTION AND SIZING OF THE VPA

Page 18: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 18

THE VPA SET UP AND TEST BENCH

Volute, Stator Vanes and Variable Nozzle Geometry Test Bench

Page 19: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 19

POWER SAVING

2𝐵𝐵𝐵𝐵𝐵 𝑇𝑇𝑘𝑘 = +40 °𝐶𝐶 𝑇𝑇𝑒𝑒𝑒𝑒 = −40 °𝐶𝐶 𝑅𝑅𝑅𝑅𝑅𝑅𝑅

Page 20: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 20

1. THE BOTTOM POWER REGENERATED VAPOR COMPRESSION REFRIGERATION PLANTS HAVE BEEN PROVEN

TO BE THE BEST PRESENT ENERGY SAVING SOLUTIONS;

2. THE IMPLEMENTATION OF CAR ENGINE TURBOCHARGER TECHNOLOGY IS CHEAP, RELIABLE AND EFFICIENT;

3. TESTS HAVE SHOWN THAT THE BOTTOM POWER REGENERATED REFRIGERATION PLANTS EQUIPPED WITH

TURBOMACHINERY BASED VAPOR PRESSURE AMPLIFIERS IS A MATURE TECHNOLOGY TO BE APPLIED;

4. IN PUBLIC ADMINISTRATION BUILDINGS, EQUIPPED WITH AIR CONDITIONING PLANTS, ABOUT 9-12%

AVERAGE ENERGY SAVING IS EXPECTED.

5. IN AIR CONDITIONED BUILDINGS THAT INCLUDE COMMERCIAL & INDUSTRIAL ACTIVITIES, AN AVERAGE

POWER SAVING OF ABOUT 20% CAN BE ACHIEVED.

CONCLUSIONS

Page 21: Electric Energy Saving in Building HVAC and Domestic ...eedal2017.uci.edu/wp-content/uploads/Thursday-16-Cerri-smaller.pdf · Bleed Vapor Generator TQ chart. VBGEFF= (T5j-T6j)/(T5j-Tbj)

SEPTEMBER 13-15

IRVINE, CALIFORNIA, USA

SEPTEMBER 13-15, 2017 21