{"id":124837,"recorded_at":"2026-10-26T14:40:25.323711Z","observed_at":"2026-10-26T14:40:25.323645Z","subject_kind":"source_record","subject":"x402_bazaar:https://x402-agent-api.onrender.com/api/v1/hvac-coil-load","kind":"listing","method":"baseline/1","body":{"endpoints":[["x402","https://x402-agent-api.onrender.com/api/v1/hvac-coil-load"]],"name":"Agent Utility Suite","owner_address":"0x6847231bd28e16a0a57c59793f6b8bd8cc0043ac","raw":{"accepts":[{"amount":"2000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"maxTimeoutSeconds":120,"network":"eip155:8453","payTo":"0x6847231bD28E16A0A57c59793f6B8BD8CC0043aC","scheme":"exact"}],"description":"HVAC coil load calculator: from airflow and entering/leaving air (any two properties each), the sensible, latent and total load, tons, SHR and condensate; or one state plus loads to solve the other. Outdoor/return air mixing and outdoor air % back-calculation. ASHRAE psychrometrics, elevation, IP or SI. Shows every step with the numbers. $0.002 USDC per call.","extensions":{"bazaar":{"info":{"input":{"body":{"airflow":10000,"entering":{"dry_bulb":80,"wet_bulb":67},"leaving":{"dry_bulb":55,"wet_bulb":54}},"bodyType":"json","method":"POST","type":"http"},"output":{"example":{"airflow":10000,"condensate":13.69,"elevation":0,"entering":{"density":0.07301,"dew_point":60.32,"dry_bulb":80,"enthalpy":31.447,"grains":78.18,"humidity_ratio":0.011169,"relative_humidity":51.1,"specific_volume":13.8494,"vapor_pressure":0.25926,"wet_bulb":67},"leaving":{"density":0.07667,"dew_point":53.29,"dry_bulb":55,"enthalpy":22.569,"grains":60.42,"humidity_ratio":0.008631,"relative_humidity":93.95,"specific_volume":13.1549,"vapor_pressure":0.20116,"wet_bulb":54},"loads":{"latent":122.833,"sensible":270,"sensible_heat_ratio":0.687,"tons":32.736,"total":392.833,"total_from_enthalpy":399.538},"mixing":null,"mode":"cooling","next_calls":[{"arguments":{"airflow":10000,"friction_rate":0.08,"units":"IP"},"price":"$0.002","tool":"hvac_duct_size","why":"What duct size carries 10000 CFM at 0.08 in. w.g. / 100 ft?"}],"notes":[],"pressure":14.696,"references":["ASHRAE Handbook—Fundamentals (2021), Ch. 1 Psychrometrics","Standard-air load equations: Qs = 1.08·CFM·ΔT, Ql = 4840·CFM·ΔW, Qt = 4.5·CFM·Δh"],"solved_for":"loads","steps":[{"calculation":"p = 14.696 × (1 − 6.8754×10⁻⁶ × Z)^5.2559 = 14.696 × (1 − 6.8754×10⁻⁶ × 0)^5.2559 = 14.6960 psia","reference":"ASHRAE Handbook—Fundamentals (2021), Ch. 1 Psychrometrics, Eq. 3","step":"Atmospheric pressure"},{"calculation":"pws(67.00 °F wet bulb) = 0.32772 psia (ASHRAE Ch. 1 Eq. 6)","reference":"ASHRAE Handbook—Fundamentals (2021), Ch. 1 Psychrometrics","step":"Entering air state"},{"calculation":"Ws* = 0.621945 × pws / (p − pws) = 0.014185 lb/lb (saturated at the wet bulb)","reference":"ASHRAE Handbook—Fundamentals (2021), Ch. 1 Psychrometrics","step":"Entering air state"}],"unit_labels":{"airflow":"CFM","area":"ft²","condensate":"gal / h","density":"lb / ft³","elevation":"ft","enthalpy":"BTU / lb dry air","friction_rate":"in. w.g. / 100 ft","grains":"gr / lb dry air","humidity_ratio":"lb water / lb dry air","length":"in","load":"MBH (1,000 BTU/h)","pressure":"psia","relative_humidity":"%","specific_volume":"ft³ / lb dry air","temperature":"°F","velocity":"FPM","velocity_pressure":"in. w.g."},"units":"IP"},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"airflow":{"description":"Total airflow through the coil: CFM (IP) or L/s (SI).","exclusiveMinimum":0,"type":"number"},"elevation":{"default":0,"description":"Site elevation, ft (IP) or m (SI); sets the atmospheric pressure. Default 0 (sea level).","maximum":30000,"minimum":-1500,"type":"number"},"entering":{"additionalProperties":false,"description":"Air entering the coil: exactly two of dry_bulb, wet_bulb, dew_point, relative_humidity (%), humidity_ratio (lb/lb or g/kg), enthalpy (BTU/lb or kJ/kg), grains (gr/lb), in `units`. With outdoor_air and return_air but no outdoor air amount, it is the mixed air and the outdoor air % is back-calculated.","properties":{"dew_point":{"type":"number"},"dry_bulb":{"type":"number"},"enthalpy":{"type":"number"},"grains":{"minimum":0,"type":"number"},"humidity_ratio":{"minimum":0,"type":"number"},"relative_humidity":{"maximum":100,"minimum":0,"type":"number"},"wet_bulb":{"type":"number"}},"type":"object"},"latent_load":{"description":"Coil latent load, MBH or kW (default 0 when only sensible_load is given).","minimum":0,"type":"number"},"leaving":{"additionalProperties":false,"description":"Air leaving the coil: two properties, like `entering`.","properties":{"dew_point":{"type":"number"},"dry_bulb":{"type":"number"},"enthalpy":{"type":"number"},"grains":{"minimum":0,"type":"number"},"humidity_ratio":{"minimum":0,"type":"number"},"relative_humidity":{"maximum":100,"minimum":0,"type":"number"},"wet_bulb":{"type":"number"}},"type":"object"},"mode":{"description":"When solving a state from loads: cooling (default) removes heat, heating adds it. Detected automatically when both states are given.","enum":["cooling","heating"],"type":"string"},"outdoor_air":{"additionalProperties":false,"description":"Outdoor air (two properties, like `entering`), mixed with return_air ahead of the coil.","properties":{"dew_point":{"type":"number"},"dry_bulb":{"type":"number"},"enthalpy":{"type":"number"},"grains":{"minimum":0,"type":"number"},"humidity_ratio":{"minimum":0,"type":"number"},"relative_humidity":{"maximum":100,"minimum":0,"type":"number"},"wet_bulb":{"type":"number"}},"type":"object"},"outdoor_air_percent":{"description":"Outdoor air share of the total airflow, %.","maximum":100,"minimum":0,"type":"number"},"outdoor_airflow":{"description":"Outdoor airflow, CFM or L/s (instead of outdoor_air_percent).","minimum":0,"type":"number"},"return_air":{"additionalProperties":false,"description":"Return air (two properties, like `entering`).","properties":{"dew_point":{"type":"number"},"dry_bulb":{"type":"number"},"enthalpy":{"type":"number"},"grains":{"minimum":0,"type":"number"},"humidity_ratio":{"minimum":0,"type":"number"},"relative_humidity":{"maximum":100,"minimum":0,"type":"number"},"wet_bulb":{"type":"number"}},"type":"object"},"sensible_load":{"description":"Coil sensible load, MBH (IP) or kW (SI): with one state, solves the other.","minimum":0,"type":"number"},"units":{"default":"IP","description":"\"IP\" (°F, CFM, in, BTU) or \"SI\" (°C, L/s, mm, kW). Default IP. Applies to inputs and results.","enum":["IP","SI"],"type":"string"},"via":{"description":"Optional: the tool whose next_calls suggested this call (filled in for you).","maxLength":64,"type":"string"}},"required":["airflow"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}}},"lastUpdated":"2026-10-25T12:50:39.274Z","quality":{"l30DaysTotalCalls":3,"l30DaysUniquePayers":3,"lastCalledAt":"2026-10-25T12:50:38.915Z"},"resource":"https://x402-agent-api.onrender.com/api/v1/hvac-coil-load","serviceName":"Agent Utility Suite","tags":["hvac","coil-load","engineering","mechanical-engineering","ashrae"],"type":"http","x402Version":2},"source":"x402_bazaar","summary":"HVAC coil load calculator: from airflow and entering/leaving air (any two properties each), the sensible, latent and total load, tons, SHR and condensate; or one state plus loads to solve the other. Outdoor/return air mixing and outdoor air % back-calculation. ASHRAE psychrometrics, elevation, IP or SI. Shows every step with the numbers. $0.002 USDC per call."},"body_sha256":"fa50027c338f5bfce65678036d869100bdb6712c48c6ff8a305c85905072101f","prev_id":null,"leaf":"0x1ef94c433c1c0052e5fd8788fa8ef86a4af36ac30812f097d082b8a8bf4cee0e","leaf_text":"{\"body\":\"fa50027c338f5bfce65678036d869100bdb6712c48c6ff8a305c85905072101f\",\"id\":124837,\"kind\":\"listing\",\"method\":\"baseline/1\",\"observed_us\":1793025625323645,\"prev\":null,\"subject\":\"x402_bazaar:https://x402-agent-api.onrender.com/api/v1/hvac-coil-load\",\"subject_kind\":\"source_record\"}","day":{"day":"2026-10-26","leaves":296695,"root":"0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8","chained":"0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a","anchor_chain":"eip155:5042002","anchor_tx":"0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae","anchor_block":69251483},"proof":["0x1ef97ffac03275ed00a997e6190057313b5a0ed5cf06e845276542b1f9155549","0x862dfea699e5dedc922854321c0949a28fbfb43dd2791aa23c247bf15be8cb6d","0x8096168b99563a5a12ec50ca045392c2034ef8385bb5904f55bf50b648e83c1c","0xdb906e2c8f62ee0f21b2704ac1de07154dc997c64e397f4551f31f59e3fcbbe9","0x04823b289e0dc24ac858266b3ec6084311bd811e4e7dbe5f7bbbf6eff9735930","0x1459060e6386c4b40f2530874f6fa6600e09a402343bf3ee3f34e0fd7faf59d6","0x24620cd09f019845b822b0bac7bb3ff3ac24f147faa3eadde2612574ae8683ae","0xb12782d5d04c13e86edb6a887bb4b6f36fdb9211a42956f9ebc1bd5380963a45","0x5ea005b2aad9c8979e952e284f06300a28be249aa66535acf2907a3a6fa36ae0","0xef610ca79dfed4e1e00208e978a3a887d70d47190be682de5aa9a473137a32fe","0x3e9f4dee30700b7fef683685ce6c4e483a5869ff14413228fe9abfbaa1a7cd3c","0xbd94b9d1458901cf513783d5d2bc701e3babbcdf9219e07ee2be8fb2c897060f","0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47","0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16","0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f","0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca","0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13","0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d","0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a"]}