This paper presents an analytic approach for defining optimal operation decisions for a power generation unit (PGU) in combined heating and power (CHP) systems. The system is optimized with respect to cost, and the independent variables are the thermal load and the electric load. Linear programming is a common tool used to find the optimal PGU operation for a given combination of thermal and electric loads, but these methods are more computationally intensive than the analytical approach proposed in this paper. The analytic process introduced in this paper shows that the optimal PGU operation for all possible thermal and electric loads can be decided by simple and explicit equations even when the efficiency of the PGU is allowed to vary with PGU loading. Moreover, the analysis reveals that for all possible load conditions, the optimal CHP system operation is based on either following the electric load (FEL) or following the thermal load (FTL) strategies. The cost ratio, i.e., the ratio of the electricity price to the fuel price, is introduced as the key parameter used for making optimal decisions. Cost ratios in Chicago, IL and Philadelphia, PA are used as case studies to show the effect that different cost ratios have on the optimal operation decisions for each possible input load.
Skip Nav Destination
Article navigation
March 2012
Research Papers
Analytic Solutions for Optimal Power Generation Unit Operation in Combined Heating and Power Systems
Rogelio Luck,
Rogelio Luck
Department of Mechanical Engineering,
Mississippi State University
, 210 Carpenter Engineering Building, P.O. Box ME, Mississippi State, MS 39762-5925
Search for other works by this author on:
Pedro J. Mago,
Pedro J. Mago
Department of Mechanical Engineering,
Mississippi State University
, 210 Carpenter Engineering Building, P.O. Box ME, Mississippi State, MS 39762-5925
Search for other works by this author on:
Aaron Smith
Aaron Smith
Department of Mechanical Engineering,
Mississippi State University
, 210 Carpenter Engineering Building, P.O. Box ME, Mississippi State, MS 39762-5925
Search for other works by this author on:
Rogelio Luck
Department of Mechanical Engineering,
Mississippi State University
, 210 Carpenter Engineering Building, P.O. Box ME, Mississippi State, MS 39762-5925
Pedro J. Mago
Department of Mechanical Engineering,
Mississippi State University
, 210 Carpenter Engineering Building, P.O. Box ME, Mississippi State, MS 39762-5925
Aaron Smith
Department of Mechanical Engineering,
Mississippi State University
, 210 Carpenter Engineering Building, P.O. Box ME, Mississippi State, MS 39762-5925J. Energy Resour. Technol. Mar 2012, 134(1): 011301 (8 pages)
Published Online: December 23, 2011
Article history
Received:
February 16, 2011
Revised:
August 10, 2011
Online:
December 23, 2011
Published:
December 23, 2011
Citation
Yun, K., Luck, R., Mago, P. J., and Smith, A. (December 23, 2011). "Analytic Solutions for Optimal Power Generation Unit Operation in Combined Heating and Power Systems." ASME. J. Energy Resour. Technol. March 2012; 134(1): 011301. https://doi.org/10.1115/1.4005082
Download citation file:
Get Email Alerts
Assessing Hydrogen–Ammonia Ratios to Achieve Rapid Kernel Inception in Spark-Ignition Engines
J. Energy Resour. Technol (June 2024)
Characterization of Surfactant Adsorption Profile in Carbonates Under Severe Reservoir Conditions With Geochemical Modeling Approach
J. Energy Resour. Technol (June 2024)
Techno-Economic and Environmental Analysis of a Hybrid Power System Formed From Solid Oxide Fuel Cell, Gas Turbine, and Organic Rankine Cycle
J. Energy Resour. Technol (July 2024)
Artificial Intelligence for Thermal Energy Storage Enhancement: A Comprehensive Review
J. Energy Resour. Technol (June 2024)
Related Articles
Effect of Increasing Number of Residential SOFC Cogeneration Systems Involved in Power Interchange Operation in Housing Complex on Energy Saving
J. Fuel Cell Sci. Technol (August,2011)
Design and Feasibility Study of Biomass-Driven Combined Heat and Power Systems for Rural Communities
J. Energy Resour. Technol (July,2022)
Microgrid Viability for Small-Scale Cooling, Heating, and Power
J. Energy Resour. Technol (March,2007)
The Performance Optimization of a Gas Turbine Cogeneration/Heat Pump Facility With Thermal Storage
J. Eng. Gas Turbines Power (January,1995)
Related Proceedings Papers
Related Chapters
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Performance and Mechanical Equipment Standards
Handbook for Cogeneration and Combined Cycle Power Plants, Second Edition
A Case Study of Gasification CHP in Northern Italy in the European Context and Comparison to Traditional Combustion Systems
Proceedings of 2018 EEC/WTERT Conference