Ways in which Pinch Analysis can lead to energy cost saving


It is important to conserve energy and find alternative ways to the traditional methods that use more energy. Many companies are making efforts to let their processes go as green as possible. This could include incorporating new technology to cut the running cost-effectively, such as finding ways to recover the wasted heat. Another approach could be using renewable energy sources or re-evaluating the fuel type. It is important to decrease energy costs and increase power efficiency in any of the ways possible. One such way is Pinch Analysis which is highly effective for doing so. Following are the details of this method: -
  • It is regarded as a highly effective means to study the efficiency of current equipment and accordingly design a new heat exchanger system if the analysis indicates that it is needed to be improved.
  • It basically helps to determine the best location of each piece of equipment. It uses the first and second laws of thermodynamics. Pinch analysis identifies the pinch point (the minimum allowable temperature difference) which eventually helps to determine the optimal size of a heat exchanger for a particular use. 
  • This analysis serves a great help to the companies to recognize reasonable energy and capital cost targets. This also helps it to keep everything organized so that if later on any new heat exchange system is adopted then it can be compared to the previous one.
  • Pinch Analysis is simple as well; there is a number of resources available for the companies to conduct this analysis. They can hire a professional to perform one in their facilities or get software for their company. Purchasing software will help to collect the necessary information and could save a lot of time. The company can send this information to the third party to analyze it. It could also be done by us too which would not require much time, money and labor which would be needed in conducting formal pinch analysis.
  • The engineers need to determine the design of the core process, heat recovery system, and utility system step by step for the formulation of a process. This could be made easier by using the pinch method, as pinch analysis works with defined targets for each of the three components of the design. Thus, this facilitates the engineers to identify opportunities for greater heat integration. In this way, pinch analysis can also contribute to designing a more useful heat exchanger along with reducing the energy cost.
 Pinch Analysis is indeed an effective method to solve many of the problems and reduce the running cost. Determining the best location for each piece of equipment is like solving a puzzle in operation, thus it makes the complex tasks much simpler. In spite of being this beneficial, there are few obstacles related to it, i.e. it involves a few complex calculations that could be time-consuming and the formal analysis could be expensive. Though, the assistance it provides in savings and reducing the energy cost may justify the amount of time and money spent on the analysis.

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