- Acknowledgements

List of Tables

List of Figures

Nomenclature

Abstract

- The Vapor Compression Cycle

Direct Thermally Driven Heat Pumps

Dual Pressure Direct Thermally Driven Heat Pumps

Single Pressure Direct Thermally Driven Heat Pumps

- The Ammonia-Water-Hydrogen Cycle

The Einstein Cycle

- Einstein Patent Review

Cycle Models

Bubble Pumps

- Introduction

Background

- Property Models

Experimental Mixture Data

- The Ideal Gas Equation of State

Cubic Equations of State

The Patel Teja Cubic Equation of State

Fugacity and the Enthalpy and Entropy Departures for a Pure Substance

- Enthalpy and Entropy Departures

- Mixing and Combining Rules

Enthalpy and Entropy Departures for a mixture

Property Calculation at a State for a Mixture

Fugacity for a component, i, in a mixture

Equilibrium States in Mixtures

- Single Phase, Non-Saturated Equilibrium States

Vapor-Liquid Equilibrium and Single Phase, Saturated Equilibrium States

Liquid-Liquid Equilibrium States

Vapor-Liquid-Liquid Equilibrium States

**III. Cycle Thermodynamic Model**

- The Evaporator

The Pre-Cooler

The Condenser/Absorber

The Generator

The Bubble Pump

- Analytical Results

Experimental Setup

Experimental Results

**V. Cycle Thermodynamic Performance**

- Base Case Performance, The Maximum Lift, and Variable Performance

- Variation of System Pressure, Generator, Condenser, and Evaporator Temperatures

Variation of Finite Heat Exchanger Pinch Points

Conceptual Demonstration Prototype

**VI. Alternative Working Fluids Performance**

- Introduction

Refrigerant Fluid Alternatives

Pressure Equalizing Fluid Alternatives

Results

- Alternative Fluid Base Case

Alternative Fluid Maximum Lift Case

**VII. Conclusions and Recommendations**

- Conclusions

Recommendations

**A. Analytical Solution of a Cubic Equation**
**B. Patel-Teja Equation Of State Parameters**
**C. Engineering Equation Solver Program Listings**