Theses and Dissertations

Issuing Body

Mississippi State University


Mago, Pedro J.

Committee Member

Chamra, Louay M.

Committee Member

Srinivasan, Kalyan K.

Date of Degree


Document Type

Graduate Thesis - Open Access


Mechanical Engineering

Degree Name

Master of Science (M.S.)


James Worth Bagley College of Engineering


Department of Mechanical Engineering


This thesis evaluates the effects of Combined Heating and Power (CHP) systems with a Propane fueled spark ignited engine as prime mover used in a small commercial building. The system was evaluated in five different U.S. cities. The most common operating modes, thermal load following (FTL) and electric load following (FEL) were evaluated, and an optimized operating mode was developed and investigated. The optimized operating mode is a hybrid (FHL) of FEL and FTL operation. Methodology for the derivation and application of these models is presented. Also, the economic effects of Diesel and Natural Gas were investigated. The results for all five cities and all three operating modes were gathered and compared with a conventional system. Comparisons were made based on cost, primary energy consumption, and carbon dioxide emissions. It was concluded that the feasibility of CHP had great potential, but is highly dependent upon the location of the system.