Boosting Energy Efficiency Using Waste-Heat-Powered Absorption Chillers
- Sahil Popli (The Petroleum Institute) | Peter Rodgers (The Petroleum Institute) | Valerie Eveloy (The Petroleum Institute) | Saleh Al Hashimi (The Petroleum Institute) | Reinhard Radermacher (University of Maryland) | Yunho Hwang (University of Maryland)
- Document ID
- Society of Petroleum Engineers
- SPE Projects, Facilities & Construction
- Publication Date
- December 2011
- Document Type
- Journal Paper
- 232 - 238
- 2011. Society of Petroleum Engineers
- 4.6 Natural Gas, 4.1.4 Gas Processing, 4.1.6 Compressors, Engines and Turbines
- Natural Gas Processing, Waste Heat Recovery, Waste Heat Utilization, Energy recovery, Absorption cooling
- 0 in the last 30 days
- 274 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 10.00|
|SPE Non-Member Price:||USD 30.00|
The oil and gas industry is under increasing pressure to improve the efficiency of its energy-intensive oil- and gas-processing operations through improved energy use and waste-heat recovery. This paper explores the use of waste-heat-powered absorption cooling to boost the efficiency of natural-gas (NG) processing, enhance hydrocarbon recovery, and reduce utility cost in an NG plant. A thermodynamic analysis of a gas turbine waste-heat-powered double-effect water/lithium bromide (H2O/LiBr) absorption chiller in an integrated NG plant is presented.It is found that waste heat recovered from turbine exhaust gases could be used to provide enhanced process cooling capacity to the NG plant through absorption cooling. The results suggest that adouble-effect LiBr absorption chiller utilizing 34.6 MW of gas-turbine exhaust heat could provide 45 MW of cooling at 5°C.This could save approximately 9 MW of electric energy required by a typical compression chiller, while providing an equivalent amount of cooling.The associated annual savings are estimated to be approximately USD 7.8 million/yr, with a payback period of 2 years.
|File Size||873 KB||Number of Pages||7|
Aly, S.E. 1991.Gas turbine waste heat driven multiple effect absorptionsystem.Heat Recovery Syst. CHP 11 (5): 407-413. http://dx.doi.org/10.1016/0890-4332(91)90008-r.
ASHRAE. 2002. 2002 ASHRAE Handbook: Refrigeration, I-P Edition.Atlanta, Georgia: American Society of Heating, Refrigeration andAir-Conditioning Engineers (ASHRAE).
Brant, B., Brueske, S., Erickson, D., and Papar, R. 1998. New Waste-HeatRefrigeration Unit Cuts Flaring Reduces Pollution. Oil & Gas Journal 96 (20): 61-65.
Bruno, J.C., Miquel, J., and Castells, F. 1999. Modeling of ammoniaabsorption chillers integration in energy systems of process plants. Appl.Therm. Eng. 19 (12): 1297-1328. http://dx.doi.org/10.1016/s1359-4311(99)00004-6.
Cohen, H., Rogers, G., and Saravanamuttoo, H. 1987. Gas TurbineTheory, third edition. Essex, UK: Longman Scientific and Technical.
Dorgan, C.B., Leight, S.P., and Dorgan, C.E. 1995. Application Guide forAbsorption Cooling/Refrigeration Using Recovered Heat. Atlanta, Georgia:American Society of Heating, Refrigeration and Air-Conditioning Engineers(ASHRAE).
Erickson, D.C. 1999. Waste Wonder: Ammonia-absorption refrigeration unitpowered by waste heat nets refinery environmentally friendly profits. TechnicalReport, Energy Concepts, Annapolis, Maryland (November 1999).
Erickson, D.C. and Lauber, E. 2008.Waste-Heat Powered Ammonia AbsorptionRefrigeration Unit for LPG Recovery. Final Report, DOE Contract No.DE-FG-03GO13128, Western Refining Co., Bloomfield, New Mexico (15 April2008).
F-Chart Software. 2008. Engineering Equation Solver, http://sel.me.wisc.edu/ees/new_ees.html.
GE Energy. 2004. GE Products & Services, G-N, Gas Turbines, http://www.ge-energy.com/products_and_services/index.jsp(accessed 20 June 2010).
Gommed, K. and Grossman, G. 1990. Performance analysis of staged absorptionheat-pumps: water-lithium bromide systems. ASHRAE Transactions 96 (1): 1590-1598.
Hwang, Y. 2004. Potential energy benefits of integrated refrigeration systemwith microturbine and absorption chiller. Int. J. Refrig 27 (8):816-829. http://dx.doi.org/10.1016/j.ijrefrig.2004.01.007.
Jaruwongwittaya, T. and Chen, G. 2010. A review: Renewable energy withabsorption chillers in Thailand. Renewable Sustainable Energy Rev.14 (5): 1437-1444. http://dx.doi.org/10.1016/j.rser.2010.01.016.
Kalinowski, P., Hwang, Y., Radermacher, R., Al Hashimi, S., and Rodgers, P.2009. Application of waste heat powered absorption refrigeration system to theLNG recovery process. Int. J. Refrig 32 (4): 687-694. http://dx.doi.org/10.1016/j.ijrefrig.2009.01.029.
Kuehn, T.H., Ramsey, J.W., and Threlkeld, J.L. 1998. ThermalEnvironmental Engineering, third edition. Upper Saddle River, New Jersey:Prentice Hall.
Lu, T. and Wang, K.S. 2009. Analysis and optimization of a cascading powercycle with liquefied natural gas (LNG) cold energy recovery. Appl. Therm.Eng. 29 (8-9): 1478-1484. http://dx.doi.org/10.1016/j.applthermaleng.2008.06.028.
Moran, M.J. and Shapiro, H.N. 2008.Fundamentals of EngineeringThermodynamics, sixth edition. New York: John Wiley & Sons.
Mortazavi, A., Rodgers, P., Al-Hashimi, S., Hwang, Y., and Radermacher, R.2008. Enhancement of LNG Propane Cycle through Waste Heat Powered AbsorptionCooling. Proc., Second International Energy 2030 Conference (Energy2030), Abu Dhabi, UAE, 4-5 November, 104-115.
Mortazavi, A., Somers, C., Alabdulkarem, A., Hwang, Y., and Radermacher, R. 2010. Enhancement of APCI cycle efficiency with absorptionchillers.Energy 35 (9): 3877-3882. http://dx.doi.org/10.1016/j.energy.2010.05.043.
Najjar, Y.S.H. 1996. Enhancement of performance of gas turbine engines byinlet air cooling and cogeneration system. Appl. Therm. Eng. 16(2): 163-173. http://dx.doi.org/10.1016/1359-4311(95)00047-h.
Peters, M.S., Timmerhaus, K.D., and West, R.E. 2002. Plant Design andEconomics for Chemical Engineers, fifth edition. New York: McGraw-HillScience/Engineering/Math.
Srikhirin, P., Aphornratana, S., and Chungpaibulpatana, S. 2001. Areview of absorption refrigeration technologies.Renewable Sustainable EnergyRev. 5 (4): 343-372. http://dx.doi.org/10.1016/s1364-0321(01)00003-x.
Zabala, E.S. 2009.Technological and Economic Evaluation of DistrictCooling With Absorption Cooling Systems in Gävle (Sweden).MS thesis,Department of Technology and Built Environment, University of Gävle, Gävle,Sweden (June 2009).