Published online by Cambridge University Press: 01 June 2011
Measuring Resource Consumption
This book is all about thermodynamics and resources, the meaning of resources, their interpretation in thermodynamics, their consumption, and the path to a sustainable way of managing resources. It has been clarified in other chapters that the consumption of resources is to be understood as a process of diminishing their usability. This is the basis for this chapter: understanding resource consumption as a loss of potential utility of these resources. The concept of potential utility is explained later in this chapter in more detail. For now it should suffice to note that consumption is only partly measurable in physical terms. We speak of consumption when the states of matter and energy change in a way that makes them less usable for human needs. Thus the general meaning of consumption has an anthropogenic notion, which cannot be evaluated in objective physical terms only. In some cases, this change in the usability of material or energy flows is accompanied by a proportional change in one or more of their physical properties, as, for example, when the temperature of a heat flow decreases. In these cases, measuring consumption is straightforward. In other cases, however, the changes in the material and energy flows are of a different nature with possibly no way of direct measurement. We might still be able to find changes in the physical, chemical, or biological properties of the flows that are responsible for the loss in usability, but the relation between consumption and the change in these properties is much more complicated.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.