{"id":443595,"date":"2024-10-20T08:33:44","date_gmt":"2024-10-20T08:33:44","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ashrae-standard-181-2023\/"},"modified":"2024-10-26T16:00:08","modified_gmt":"2024-10-26T16:00:08","slug":"ashrae-standard-181-2023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ashrae\/ashrae-standard-181-2023\/","title":{"rendered":"ASHRAE Standard 181 2023"},"content":{"rendered":"

ASHRAE Standard 181 prescribes methods of testing the thermal performance and pressure drop of liquid-to-liquid heat exchangers. This standard includes online access to the Uncertainty Analysis Methodology workbook.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nANSI\/ASHRAE Standard 181-2023 <\/td>\n<\/tr>\n
3<\/td>\nContents <\/td>\n<\/tr>\n
4<\/td>\nForeword
1. Purpose
2. Scope
3. Definitions
4. Required Test Results
4.1 In expressing test results, the following parameters shall be stated: <\/td>\n<\/tr>\n
5<\/td>\n4.2 For all parameters listed in Section 4.1, uncertainty shall be calculated as described in Section 7.4.
5. Test Methods
5.1 Standard Test Methods
5.2 Calculation of Thermal Capacity (see Figure 5-1)
6. Instruments and Test Apparatus
6.1 General <\/td>\n<\/tr>\n
6<\/td>\n6.2 Temperature-Measuring Instruments
6.3 Pressure-Measuring Instruments
6.4 Liquid Flow-Measuring Instruments
6.5 Time Measurements. Time measurements shall be made with an apparatus whose accuracy shall be that required to meet the uncertainty specified in Section 5.1.2.
6.6 Weight Measurements. Weight measurements shall be made with an apparatus whose accuracy shall be that required to meet the uncertainty specified inSection 5.1.2.
7. Test Procedure
7.1 Apparatus Assembly
7.2 Operation and Limits
7.3 Computation of Results <\/td>\n<\/tr>\n
7<\/td>\n7.4 Uncertainty Analysis
8. References <\/td>\n<\/tr>\n
8<\/td>\nInformative Appendix A: Uncertainty Analysis
A1. Definitions
A2. Methodology for Uncertainty Analysis <\/td>\n<\/tr>\n
9<\/td>\nA3. Development of Uncertainty Calculations for Liquid-to-Liquid Heat Exchangers <\/td>\n<\/tr>\n
11<\/td>\nA4. References <\/td>\n<\/tr>\n
12<\/td>\nInformative Appendix B: Method to Compute the Enthalpy Difference of a Liquid Stream When an EoS-based Function Is not Available
B1. Overview
B2. Derivation of an Estimate for Enthalpy Difference <\/td>\n<\/tr>\n
13<\/td>\nB3. Example <\/td>\n<\/tr>\n
14<\/td>\nB4. Recommendations
B5. References <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ASHRAE Standard 181-2023 Method of Testing for Rating Liquid-to-Liquid Heat Exchangers (ANSI Approved)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASHRAE<\/b><\/a><\/td>\n2023<\/td>\n18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":443601,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2719],"product_tag":[],"class_list":{"0":"post-443595","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ashrae","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/443595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/443601"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=443595"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=443595"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=443595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}