Energy Analysis Report

The energy analysis report provides insight as to the detail and overall energy requirements are for the system. 

Summary

Introduction

Scope

A brief statement of the facilities covered by the energy analysis. This can usually be accomplished in one or two short sentences.

Basis

Clearly define the premises upon which the specification is based as well as any limitations imposed.

Production Rates

The annual rate of production should be stated in units commonly used for the product. This figure should agree with that used in the project scope. The product quality should be clearly defined, e.g., "dry or wet basis," "refined," etc.

Operating Factors

The annual operating hours, ratio of maximum to average flows, etc., should be recorded. These critical items must be determined carefully. The factors which combine to make up these items should be explained in detail in the supporting calculations.

This allows the design engineer to provide adequately for operating requirements without compounding safety factors.

Other Factors

Almost every energy analysis includes factors in addition to the foregoing. For example, a purchased crude material may contain a variable amount of impurity, whose removal requires distillation facilities and related utilities.

If the material and energy balance is based upon the maximum percentage of such impurity, this qualification should be stated.

Engineering Assumptions

Almost every energy analysis includes assumptions to supplement the known facts. Some assumptions are easily obtained from similar unit operations of commercial processes. Other assumptions must be regarded as speculative and subject to engineering judgments.

All assumptions and operating practices should be fully documented. This will allow an assessment of their impact on the overall economics.

Energy Analysis

Utility Overall

Auxiliary and utility overall configuration.

Utility-Resource Requirements

Discussion

Complicated qualifications should be expanded in a process description and the supporting calculations. A discussion of how rigorous or how inflexible the assumption might be and which factors are limiting permits the design engineer to take advantage of research and operating know-how.

Conclusions and Recommendations

Provide a list of conclusions and recommendations.

Acknowledgements

Special mention of assistance from individuals, groups, and departments, who are not preparing the report.

References

The list of references should include all references pertaining to data and information included in the report.

Appendices

Include any accompanying data pertinent to the report that has not been included above.

Supporting Calculations

Calculations are included to clarify the basis of the numbers developed for the material and energy balances. Generally, only those calculations need be included which involve assumptions or which cannot be readily reproduced by an experienced engineer. Thus, routine calculations may be omitted.